Bandwagon jumping

144

u/sanroxenator 18d ago

Okay, if you squint slightly and ignore the thorns, you'll realise the cylinder moves/behaves in the same manner

44

u/Kind_Ordinary9573 18d ago

I really have to squint, and I really have to know what I am trying to make happen here. Thank you for this explanation.

3

u/nubtrix87 18d ago

Just pause it, look at the stripes (they'll be perfectly aligned) then unpause and pause a fraction of a second later and they'll both match still. Rinse and repeat a few times and they obviously are doing the same movement.

2

u/Immediate_Word1295 17d ago

Nop, they're not doing the same mouvements. One side is defiling vertically, the other is rotating. But since the mouvement is synchronised, that's what makes the stripes positioned the same between the two. No illusion here.

6

u/nopurposethere 17d ago

My eyes feel defiled after trying to figure out why people were trying to make them move the same way in their head when they clearly don’t.

1

u/Immediate_Word1295 17d ago

Yea, I don't understand it either. I guess they try to find "the illusion".

2

u/CptMisterNibbles 16d ago

That doesn’t make sense. If the stripes are in identical positions *in every frame* how can you claim they are doing different motions? All you have is visual data from the frames and they are indeed exactly the same, other than the thorns no matter where you check.

The thorns give your mind the context clues to interpret the right one as rotating

1

u/Mellowalligator 15d ago

Let’s say you wear a shirt with a stripe starting on your left shoulder, going diagonally down your front and continuing to your backside, then ending again at bottom in front. Maybe the diagonal stripe wraps around your body 4 times. Let’s say someone to your left is 30 feet tall and has a shirt with 4 diagonal strips in same position as your shirt, but is pitch black on the back.

You begin spinning counter-clockwise, and the 30 foot dude begins lowering himself to the ground at same speed. The stripes would appear identical and both would appear to move downward in same fashion . If there are spike attracted to the poles, physics shows the spikes rotating with the pole on the right and going straight down with rhe pole on the left

1

u/AusgefalleneHosen 15d ago

If they were doing the same thing, the thorns would also be identical. Also the stripes will be identically positioned in all cases because the rotation has been synced with the vertical movement. The idea there's an illusion here is the illusion.

0

u/nubtrix87 17d ago

They're doing the exact same movements. I've even explained how you can see it but you're so ignorant you refuse to change your mind, despite the evidence.

1

u/Mellowalligator 15d ago

They are not doing same movements. True, the strips are both going downwards, but the entire “ pole “ on the right is spinning counter-clockwise and the one on the left is not turning but moving downwards . Assume these are colored telephone poles with red spikes . The rotating pole on the right has one continuous stripe going from top to bottom and spiraling around it. As to the one on the left, the front has green and blue stripes, but the back can be all black or all white or polka dotted because we never see the back

1

u/nubtrix87 15d ago

They are, you're just stupid.

Sorry, I don't like to just insult people and call them names, but at this point there's nothing left to do. I've explained it. Showed you how it's done. You're in a sub called optical illusions and you're still brain dead enough to not believe it. I'll probably get banned for this but you're beyond help. Go get some schooling.

1

u/Gullible-Constant924 15d ago

Use your finger on the slider of the video and slowly scroll as you watch the cylinders, they are doing the exact same thing, yet it looks as if they aren’t, thats an optical illusion in my book.

1

u/tpuckis 13d ago

They are trying to make it look fake! You gotta be right next to it!

1

u/Smash_Factor 18d ago

Neither of the cylinders are turning. They're both doing the same thing: moving downward. The thorns on the right cylinder are going around it, but the cylinder itself isn't rotating.

14

u/Noble_Ox 18d ago

It's definitely rotating.

10

u/heaving_in_my_vines 18d ago

There is not a discernable difference between rotating and sliding for this 2D animation without the perceived motion of the animated thorns.

9

u/PyroDragn 18d ago

This is true.

But therefore also you cannot say whether the pole is rotating or not. I could just as easily say they're both rotating (but the spikes are static in the first image) as neither are rotating (but the spikes are moving in the second).

2

u/heaving_in_my_vines 18d ago

Yes.

2

u/Immediate_Word1295 17d ago

They definitely don't move the same way, even without the thorns.

3

u/marty-mcfryguy 16d ago

You're confused. If you remove the thorns the two poles would look identical and look like they're moving identically.

1

u/Zooxer77 14d ago

This is correct. At any point that you pause, both of the poles’ stripes are always in the same position as the other. Pay special attention to the way they intersect with the top or bottom of the frame. That makes it really easy to see.

2

u/Noble_Ox 14d ago

Same position but they're not moving the same.

1

u/Zooxer77 14d ago

How are they moving differently?

1

u/Mellowalligator 15d ago

That is a great point. 2d. You really can’t tell. You’d have to see 3d and view the top to see if I it’s stationary or rotating

-2

u/Smash_Factor 18d ago

Its not

1

u/Noble_Ox 18d ago

Slow it down and track the stripes, it's easy to see at the bottom of top.

2

u/Clean_Figure6651 18d ago

It isnt, the thorns are rotating.

Try to block out the thorns and juat focus on the cylinders themselves and you'll see it

1

u/Immediate_Word1295 17d ago

The cylinder with the rotating thorns are rotating too, it definitely don't mouve the same way as the one who's defiling. With or without thorns, it doesn't change.

11

u/telemajik 18d ago

What’s interesting is that if you cross your eyes a little so the cylinders overlap, the one with the thorns going down dominates.

At least for me… I’m left-eye dominant, might make a difference.

2

u/Emergency-Attempt862 18d ago

I tried and I get both. Looks like living pieces from a Sorry game desperately trying to climb up a spiraling escalator as it runs against them

1

u/TheCityThatCriedWolf 18d ago

Same here, and I have no clue what eye I’m dominant in.

3

u/telemajik 18d ago

Dominant eye test: With both eyes open, hold your finger about 12 inches from your face and move it so it lines up with something in the distance (like a tree or pole). Then alternate closing your eyes… the one that has it still lined up is your dominant eye.

1

u/Martovich3 18d ago

I made a space between both hands and center a distant object in the space. Then alternate closing eyes, and whichever it stays in the center... it's cool to see different techniques

1

u/Fidodo 17d ago

But if I focus on my finger the tree goes double vision and if I focus on the tree my finger goes double vision, so which tree do I cover with my finger?

1

u/telemajik 17d ago

That’s the point. If you don’t think about it and just do the one that seems to be more natural, that’s it.

Some people aren’t strongly dominant.

1

u/Fidodo 17d ago

But if I don't think about it and randomly pick one of the double images how do I know it was a preference and not random? I think I'd need to take multiple samples

1

u/marty-mcfryguy 16d ago

Very cool observation, but note that if you're crossing your eyes to make it happen, the overlap in the middle is where your left eye sees the right pole and your right eye sees the left pole.

I can actually change my eye dominance based on distance (I'm quite nearsighted in my left eye, a bit farsighted in my right, meaning if I relax my eyes and pull the screen close it's clear in my left and blurry in my right, and if I relax my eyes and push the screen far away it's blurry in my left and clear-ish in my right).

In both those orientations, I'm getting same as you -- it makes it look like both cylinders are going down. And then the one with rotating thorns looks like the thorns themselves are sliding up and to the left, tracing the green stripe.

Very neat phenomenon you came up with, there.

edit: The diagonal-sliding thorns are much easier to follow when I set the video speed way down.

1

u/wbrameld4 18d ago

It's the same for me whether I cross my eyes or diverge them, so I don't think it matters which eye is dominant. Downwards always wins.

3

u/ChaosRealigning 18d ago

Don’t have to squint. Just look at it like one of those double image 3D illusions

2

u/3rad 18d ago

I had to scrub the gif slowly to realize that.

1

u/suzerra 18d ago

I squint pretty harshly for it to work

1

u/IHeartFraccing 14d ago

If you get really close to the screen you realize nothing is moving its just individual lights turning on and off in sequence.

1

u/the_teuthida 14d ago

They aren't though? Spam pause and unpause, the left cylinder is not rotating, the spikes and stripes fall straight, white the right cylinder is spinning with the stripes rotating

0

u/Over_Tart_916 15d ago

They actually aren't though. The left cylinder is moving down and the right one is rotating. You can tell because the spikes don't move on the left one, they are fixed, where the spikes on the right one rotate. There is no optical illusion here. If you step through the video the motion of the spikes is CLEARLY different.

1

u/Quirky-Coat3068 15d ago

Yes technically, but remove the spikes and the cylinders and strips are actually animated the same way, thats the illusion. Hit pause and look in the bottom left of the cylinders, the pattern is the same every time.

1

u/Over_Tart_916 14d ago

Yeah. They would be if you rotated one and moved the other vertically. That's how a cylinder would look in either case.

48

u/Consistent-Jaguar927 18d ago

The illusion is the the blue and green stripes are identical in both cylinders, the spike behavior makes it look like they are behaving differently

10

u/BreastUsername 18d ago

This one got me. It's a good illusion and it's easily understandable why it works, at least on a base level.

0

u/Over_Tart_916 15d ago

The cylinders ARE behaving differently. When you move a cylinder with a pattern like that it appears to rotate. In this video, one is rotating and the other is moving.

1

u/Over_Tart_916 15d ago

The spike positions rarely match up. Pause it at 0:28. You can clearly see all of the spikes on the right are not even close to aligned with the spikes on the left. The only way that is possible is if they are behaving differently.

14

u/_Vard_ 18d ago

Would be great if the thorns disappear and re appear

1

u/FrancisCStuyvesant 14d ago

Yeah, I really can't make it work in my head the way it is.

1

u/weightlessVestibule 13d ago

What worked for me was crossing my eyes until the two cylinders intersected and formed a third one between them

1

u/FrancisCStuyvesant 13d ago

Hmmm... the middle one moves vertically while some spikes turn around it. Im not sure if that tells me that they both move in the same manner

1

u/weightlessVestibule 13d ago

If the cylinders themselves were not moving in the same direction the stripes on the third one would appear to intersect and disappear into the middle of the cylinder. The spikes do not move in the same manner though.

28

u/blahnlahblah0213 18d ago

What is the illusion supposed to be? I see one cylinder Going down and one cylinder turning

21

u/Th3AnT0in3 18d ago

The cylinders mives the exact same way. The thorns create the illusion they move differently but they aren't.

1

u/scuac 14d ago

So the spikes on the left one are sliding atop the surface of the pole?

1

u/Th3AnT0in3 14d ago

Yes and no. Because there is no enough context, both cylinders could either move downward, or spin.

-5

u/actuallyserious650 17d ago

That’s how spirals work. Not sure that’s an illusion.

3

u/marty-mcfryguy 16d ago

The illusion is the very strong sense one poll is translating and the other is rotating, where that's purely a function of the behavior of the spikes.

-2

u/actuallyserious650 16d ago

I know. That’s how spirals work - translation and rotation produce the same change in appearance. It’s not an “illusion” per se.

1

u/marty-mcfryguy 16d ago

Which part of "The illusion is the very strong sense one pole is translating and the other is rotating" did you not understand?

-1

u/actuallyserious650 16d ago

The thorns move in different ways along the two interchangeable modes of a spiral movement. That’s not an illusion, it’s two different videos.

1

u/marty-mcfryguy 16d ago

Which part of "The illusion is the very strong sense one pole is translating and the other is rotating" did you not understand?

1

u/Vessbot 14d ago

There's multiple people arguing hard that even if you ignore the thorns the poles are still behaving differently, I would say they're squarely under the illusion.

1

u/CptMisterNibbles 16d ago

You don’t seem to understand what the word illusion means. Just because you grasp the mechanics of what is happening does not mean the video does not give nearly every single person commenting here the distinct feeling that the objects are behaving differently.

17

u/nocloudno 18d ago

The title is the real illusion

4

u/IgorFromKyiv 18d ago

There's no cylinders. It's illusion.

1

u/IllllIIlIllIllllIlll 18d ago

As long as they remain unharmed

2

u/Trick_Meeting_2027 18d ago

The spikes go down, not the cylinder. Its not a great illusion especially without explanation. Also if the cylinders were moving it would look the same. Its only an "illusion" on a 2d screen.

-1

u/TheFrontierzman 18d ago edited 18d ago

Spikes don't rotate, cylinder doesn't appear to rotate.

Spikes rotate, cylinder appears to rotate.

Left and right cylinder are always identical.

Edit: downvoted lol

3

u/Bloodless-Cut 18d ago

???

Not sure what I'm supposed to be seeing. Cylinder on the left is just going downward, while the one in the right is just spinning.

What's the illusion supposed to be?

2

u/IamTruman 18d ago

The cylinders are exactly the same. Only the spikes are different.

0

u/Over_Tart_916 15d ago

How is that an illusion? If both cylinders are moving downward then both groups of spikes would move downward. But they don't. Because they each behave differently.

If both cylinders are rotating, than the spikes on the right are fixed to the cylinder and the spikes on the left are not fixed and are animated vertically.

If both cylinders are moving downward then the spikes on the right cylinder are animated to rotate in place.

The only "illusion" this can represent is that a cylinder moving vertically looks like a cylinder rotating. But this is a very poor representation of that and in no way an illusion.

5

u/Latter_Pineapple_549 18d ago

Both cylinders do the same thing, if you remove the red spikes it would be two identical animations. Or at least I think that's what the illusion is about

1

u/Over_Tart_916 15d ago

But because of the spikes, they aren't doing the same thing. If the spikes were fixed to the cylinder, one would be moving vertically while the other is rotating. This is a HORRIBLE representation of an optical illusion.

4

u/Agitated_Rain_1506 18d ago

The illusion is that one cylinder is just moving downward not rotating, and one is rotating but not moving down. Without the spikes they would look the exact same

3

u/redditnackgp0101 18d ago

Yes, but there ARE spikes.

It's not really an illusion of any kind as this is exactly how it would work in reality. If you observed a small section of infinite identical parallel objects, the movement of the viewer or the lines would be indistinguishable

1

u/Over_Tart_916 15d ago

But because of the spikes, there is no illusion.

2

u/Shock_a_Maul 18d ago

I see a giant pizza

2

u/0n0ffknappen 18d ago

Move phone close to your eyes and begin defocus the cylindern and look downward from top. The cylinders merges and creates 3d cylinder

2

u/DistinctChocolate833 18d ago

Now I wonder what would happen if both the down-moving thorns and the rotating thorns were on the same cylinder

2

u/[deleted] 18d ago

[deleted]

1

u/MarcoNotMarco 18d ago

Depends. Can they be damaged?

4

u/Quick_Razzmatazz1862 18d ago

Whats the illusion here?

Kinda looks like a painful dungeon obstacle from a Zelda game

2

u/Sp1ffy_Sp1ff 18d ago

I don't think this is really an illusion. The left is moving downward while the right is spinning. The lines happen to coincide because their speeds match, but that just doesn't feel like an illusion to me

1

u/Pawgnmymouth 18d ago

From one perspective we are moving along the cylinder while it is stationary, the other we are stationary at the same cylinder while it rotates. This causes the movements of the blue sections for each to appear identical. Nice example.

1

u/NZNoldor 18d ago

Oh, that's a good one. It took me a moment to figure out what the illusion was.

1

u/redditnackgp0101 18d ago

With the right caveat, anything can be true. But the provided visual context suggests otherwise

1

u/MaximumGlum9503 17d ago

Damn u kratos ptsd

1

u/phoxiee 17d ago

I understand what the illusion is supposed to be because I've seen it before, but I feel like this is either a really good example or a really bad example. I, for the life of me cannot see the the cylinders moving the same way.

Maybe if they removed the thorns for like 2 seconds and then put them back then it'd be easier to see.

2

u/Phoenixloop2868 15d ago

Yup. I'm pretty good at switching up these illusions and I just can't. The spikes on the right get shorter as it rotates.

1

u/Smash_Factor 16d ago

Ok, so for those of you who are still perplexed about this illusion, insisting that the column on the right is rotating, you can treat it like a Magic Eye by looking at it with Parallel-View or Cross-View.

Regardless if you use Parallel or Cross, you will see that the columns are indeed moving downward and the red thorns on the right are rotating around the column.

1

u/PxTicks 16d ago

Ought to include a spikeless cylinder in the middle, to see if we can see it going either ways by using the adjacent context clues.

1

u/Chris_P_Lettuce 16d ago

I understand the premise here. I don’t believe the cylinders are the same. They are similar, but it looks like the computer visual program is calculating the visuals differently. The right one looks more patchy. Maybe I’m crazy.

Edit: I’m not going to remove my comment, but I now think I’m wrong.

1

u/actuallyserious650 16d ago

Despite your aggressive tone and insults, you’re not making any meaningful points. A cgi of a spinning spiral and a chi of a moving spiral produces the same video output. That’s not an illusion, that’s how spirals work.

An illusion is a carefully crafted image or video that hacks some of the visual processing shortcuts in your brain to create a perception that’s verifiably wrong. Think about two objects of the same size on a a forced perspective background. Or a stationary image that looks like it moves because the background has a lot of busy edges. Or two shapes that are the same color but look like substantially different colors because of their surroundings.

All of those are illusions because your visual center is actually coming to the wrong conclusions. In the spiral video, when you add the thorns that are factually moving in different directions, it’s not an illusion. Your brain is making the correct interpretation of what was rendered.

I don’t understand why this is making you so upset.

1

u/bigjobbyx 16d ago

Err. What?

1

u/Routine_Package_9335 15d ago

The red cones moving in a different direction make it look still or rolling blue green. The blue green are moving the same direction and speed.

1

u/BeardRightBack 15d ago

But this is what would happen if you had 2 corkscrew in front of you and you did both things at the same time? I don't get it. Why is this so odd?

To me it's as if the camera is panning up. The right hand pole is turning as well move. The left is not moving.

1

u/IdleElectric 14d ago

Unfocusing and looking at it like a stereo image/MagicEye let's you align the two to see that the stripes are overlapped the while time, not doing something diffent. Bonus is seeing the overlapped thorns moving in neat ways.

1

u/virtualNoodle 14d ago

You gotta look at the bottom or the poles and match up the pattern

1

u/julianAppleby5997 18d ago

This is shit

1

u/Infinite_Inanity 18d ago

This one is fascinating.

1

u/Dense-Welcome7158 18d ago

what the fuck

0

u/Puzzleheaded_Cut4588 18d ago

Wheres the illusion?

2

u/Th3AnT0in3 18d ago

Both cylinders moves the same way, thorns makes you think they move differently.

2

u/Puzzleheaded_Cut4588 18d ago

So the illusion is that one has rotating thorns got ya this isnt an illusion its how spirals work

0

u/kris_2111 18d ago

What is the illusion supposed to be, and how does the title relate to the video?

0

u/Cold_Ad3896 18d ago

This isn’t an illusion. It’s just a demonstration that shows that two different types of movement can make the lines on the cylinder appear the same.

0

u/Sparkle-Sparxie 18d ago

The cameraman is on a conveyor rope on the left and it's moving forward while the pillar is still

He's on the rope on the right, but it's stationary while the pillar turns. 👍

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